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VS2008+sql做的登陆注册系统VS2008+sql做的登陆注册系统
代码片段和文件信息
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
using System.Drawing;
public partial class CheckCode : System.Web.UI.Page
{
protected void Page_Load(object sender EventArgs e)
{
this.createCheckCodeImage(generateCheckCode());
}
private string generateCheckCode()
{
int number;
char code;
string checkCode = string.Empty;
Random random = new Random();
for (int i = 0; i < 4; i ++ )
{
number = random.Next();
if (number % 2 == 0)
{
code = (char)(‘0‘ + (char)(number % 10));
}
else
{
code = (char)(‘A‘ + (char)(number % 26));
}
checkCode += code;
}
Session[“CheckCode“] = checkCode;
return checkCode;
}
private void createCheckCodeImage(string checkCode)
{
if (checkCode == null || checkCode.Trim() == String.Empty)
return;
System.Drawing.Bitmap image = new System.Drawing.Bitmap((int)Math.Ceiling((checkCode.Length * 12.5)) 22);
Graphics g = Graphics.FromImage(image);
try
{
//生成随机生成器
Random random = new Random();
//清空图片背景色
g.Clear(Color.White);
//画图片的背景噪音线
for (int i = 0; i < 25; i++)
{
int x1 = random.Next(image.Width);
int x2 = random.Next(image.Width);
int y1 = random.Next(image.Height);
int y2 = random.Next(image.Height);
g.DrawLine(new Pen(Color.Silver) x1 y1 x2 y2);
}
Font font = new System.Drawing.Font(“Arial“ 12 (System.Drawing.Fontstyle.Bold | System.Drawing.Fontstyle.Italic));
System.Drawing.Drawing2D.LinearGradientBrush brush = new System.Drawing.Drawing2D.LinearGradientBrush(new Rectangle(0 0 image.Width image.Height) Color.Blue Color.DarkRed 1.2f true);
g.DrawString(checkCode font brush 2 2);
//画图片的前景噪音点
for (int i = 0; i < 100; i++)
{
int x = random.Next(image.Width);
int y = random.Next(image.Height);
image.SetPixel(x y Color.FromArgb(random.Next()));
}
//画图片的边框线
g.DrawRectangle(new Pen(Color.Silver) 0 0 image.Width - 1 image.Height - 1);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
image.Save(ms System.Drawing.Imaging.ImageFormat.Gif);
Response.ClearContent();
Response.ContentType = “image/Gif“;
Response.BinaryWrite(ms.ToArra
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 4667 2008-12-24 20:02 MyWebSite\App_Code\DataOperate.cs
文件 611 2010-01-07 00:34 MyWebSite\App_Code\Name.cs
文件 889 2010-01-07 00:30 MyWebSite\App_Code\Student.cs
文件 2293760 2009-12-16 23:17 MyWebSite\App_Data\aspnetdb.mdf
文件 573440 2009-12-16 23:17 MyWebSite\App_Data\aspnetdb_Log.LDF
文件 447 2008-12-23 10:28 MyWebSite\CheckCode.aspx
文件 3204 2008-12-23 11:00 MyWebSite\CheckCode.aspx.cs
文件 650 2008-12-24 10:23 MyWebSite\Error.aspx
文件 458 2008-12-23 17:19 MyWebSite\Error.aspx.cs
文件 4921 2008-12-24 19:31 MyWebSite\Login.aspx
文件 2939 2008-12-24 11:18 MyWebSite\Login.aspx.cs
文件 449 2008-12-23 15:32 MyWebSite\Manager.aspx
文件 408 2008-12-23 14:53 MyWebSite\Manager.aspx.cs
文件 1578 2010-02-06 20:48 MyWebSite\MyWebSite.sln
..A..H. 10752 2010-02-06 20:49 MyWebSite\MyWebSite.suo
文件 8717 2008-12-24 10:29 MyWebSite\Region.aspx
文件 3741 2008-12-24 20:00 MyWebSite\Region.aspx.cs
文件 1778 2009-12-10 22:19 MyWebSite\Web.config
目录 0 2010-01-07 00:34 MyWebSite\App_Code
目录 0 2008-12-25 14:43 MyWebSite\App_Data
目录 0 2010-02-06 20:48 MyWebSite
----------- --------- ---------- ----- ----
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